package com.javacore;

public class Number {
    private int id = 1;

    @Override
    public String toString() {
        return "Number{" +
                "id=" + id +
                '}';
    }

    public static void main(String[] args) {
        String a = "a";
        String b = "a";
        System.out.println(a == b );
    }
}
